gcc/gcc ChangeLog Makefile.in cfgloop.h cfgloo ...

[rakdver at gcc dot gnu dot org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rakdver@gcc.gnu.org	2004-09-23 12:21:32

Modified files:
	gcc            : ChangeLog Makefile.in cfgloop.h cfgloopmanip.c 
	                 loop-unswitch.c timevar.def tree-flow.h 
	                 tree-optimize.c tree-pass.h 
	                 tree-ssa-loop-manip.c tree-ssa-loop.c 
	gcc/doc        : passes.texi 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc            : tree-ssa-loop-unswitch.c 
	gcc/testsuite/gcc.dg/tree-ssa: loop-6.c 

Log message:
	* cfgloop.h (update_single_exits_after_duplication): Declare.
	(loopify, split_loop_bb): Declaration changed.
	* cfgloopmanip.c (split_loop_bb): Take void * as an argument instead
	of rtx.
	(loopify): Added redirect_all_edges argument.
	(update_single_exits_after_duplication): Export.
	* loop-unswitch.c (unswitch_loop): Changed due to loopify change.
	* tree-flow.h (tree_duplicate_loop_to_header_edge,
	tree_ssa_loop_version): Declare.
	* tree-ssa-loop-manip.c (copy_phi_node_args, rename_variables,
	set_phi_def_stmts, tree_duplicate_loop_to_header_edge,
	lv_adjust_loop_header_phi, lv_adjust_loop_entry_edge,
	lv_update_pending_stmts, tree_ssa_loop_version): New functions.
	
	* tree-ssa-loop-unswitch.c: New file.
	* Makefile.in (tree-ssa-loop-unswitch.o): Add.
	* timevar.def (TV_TREE_LOOP_UNSWITCH): New timevar.
	* tree-flow.h (tree_ssa_unswitch_loops): Declare.
	* tree-optimize.c (init_tree_optimization_passes): Add pass_unswitch.
	* tree-pass.h (pass_unswitch): Declare.
	* tree-ssa-loop.c (tree_ssa_loop_unswitch,
	gate_tree_ssa_loop_unswitch, pass_unswitch): New pass.
	* doc/passes.texi: Documen tree level loop unswitching.
	
	* gcc.dg/tree-ssa/loop-6.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-unswitch.c.diff?cvsroot=gcc&r1=1.1&r2=2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5581&r2=2.5582
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&r1=1.1398&r2=1.1399
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgloop.h.diff?cvsroot=gcc&r1=1.31&r2=1.32
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgloopmanip.c.diff?cvsroot=gcc&r1=1.31&r2=1.32
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop-unswitch.c.diff?cvsroot=gcc&r1=1.21&r2=1.22
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/timevar.def.diff?cvsroot=gcc&r1=1.36&r2=1.37
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.46&r2=2.47
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-optimize.c.diff?cvsroot=gcc&r1=2.50&r2=2.51
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pass.h.diff?cvsroot=gcc&r1=2.15&r2=2.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-manip.c.diff?cvsroot=gcc&r1=2.6&r2=2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop.c.diff?cvsroot=gcc&r1=2.17&r2=2.18
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/passes.texi.diff?cvsroot=gcc&r1=1.41&r2=1.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4334&r2=1.4335
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/loop-6.c.diff?cvsroot=gcc&r1=NONE&r2=1.1